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Gastropods are capable of being either male or female, or hermaphrodites, and this makes their reproduction system stand out amongst many other invertebrates. Hermaphroditic gastropods possess both the egg and sperm gametes which gives them the opportunity to self-fertilize. [4] C. obtusus is a snail species of the Eastern Alps. In the ...
The mating of gastropods is a vast and varied topic, because the taxonomic class Gastropoda is very large and diverse, a group comprising sea snails and sea slugs, freshwater snails and land snails and slugs. Gastropods are second only to the class Insecta in terms of total number of species. Some gastropods have separate sexes, others are ...
The operculum is attached to the dorsal surface of the rear of the foot of this gastropod, the body of which is wide and T-shaped, and the colour of which varies from spotted grey to greenish to orange. The mouth has a radula, and a respiratory siphon opens on the right side of the head, feeding gills which are located in front of the heart ...
This marine gastropod mollusk is notable for its unique shell morphology and ecological role within its habitat. Domiporta gloriola is characterized by its elongated, conical shell, which can reach lengths of up to 30 mm. [ 2 ] The shell features numerous whorls, and its surface is typically adorned with fine axial ribs and spiral striations ...
Hygromiidae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea. [1] Anatomy
Most spiders have a variation of the XO system in which males have two different X chromosomes (X 1 X 2 O), while females have a pair of X 1 chromosomes and a pair of X 2 chromosomes (X 1 X 1 X 2 X 2). [1] Some spiders have more complex systems involving as many as 13 different X chromosomes. [1] Some Drosophila species have XO males. [10]
The subclass is the most diverse and ecologically successful of the gastropods. [ 3 ] Caenogastropoda contains many families of shelled marine molluscs – including the periwinkles , cowries , wentletraps , moon snails , murexes , cone snails and turrids – and constitutes about 60% of all living gastropods.
Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetigastropoda are sometimes treated as an order , although they are treated as an unranked clade in Bouchet and Rocroi, 2005 .